/* Copyright 2017 Cole Markham
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
#include QMK_KEYBOARD_H
#include "lighting.h"

#ifdef RGBLIGHT_ENABLE
// Following line allows macro to read current RGB settings
extern rgblight_config_t rgblight_config;
#endif

enum layer_names {
    _QWERTY,
    _COLEMAK,
    _DVORAK,
    _LOWER,
    _RAISE,
    _ADJUST
};

enum custom_keycodes {
    QWERTY = SAFE_RANGE,
    COLEMAK,
    DVORAK,
    LOWER,
    RAISE,
    ADJUST
};

#ifdef AUDIO_ENABLE

float tone_my_startup[][2] = SONG(ODE_TO_JOY);
float tone_my_goodbye[][2] = SONG(ROCK_A_BYE_BABY);

float tone_qwerty[][2]  = SONG(QWERTY_SOUND);
float tone_dvorak[][2]  = SONG(DVORAK_SOUND);
float tone_colemak[][2] = SONG(COLEMAK_SOUND);

#endif /* AUDIO_ENABLE */

// define variables for reactive RGB
bool TOG_STATUS = false;
int  RGB_current_mode;

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Qwerty
     * ,-----------------------------------------------------------------------------------.
     * | Esc  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * | Tab  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  '   |
     * |------+------+------+------+------+------|------+------+------+------+------+------|
     * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |Adjust| Ctrl | Alt  | Alt  |Lower | Cmd  |Space |Raise | Left | Down |  Up  |Right |
     * `-----------------------------------------------------------------------------------'
     */
    [_QWERTY] = LAYOUT(
        KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
        KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,
        KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT,
        ADJUST,  KC_LCTL, KC_LALT, KC_LALT, LOWER,   KC_LGUI, KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
    ),

    /* Colemak
     * ,-----------------------------------------------------------------------------------.
     * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
     * |------+------+------+------+------+------|------+------+------+------+------+------|
     * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
     * `-----------------------------------------------------------------------------------'
     */
    [_COLEMAK] = LAYOUT(
        KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC,
        KC_ESC,  KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT,
        KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT,
        ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
    ),

    /* Dvorak
     * ,-----------------------------------------------------------------------------------.
     * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
     * |------+------+------+------+------+------|------+------+------+------+------+------|
     * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |Space |Raise | Left | Down |  Up  |Right |
     * `-----------------------------------------------------------------------------------'
     */
    [_DVORAK] = LAYOUT(
        KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC,
        KC_ESC,  KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH,
        KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_ENT,
        ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
    ),

    /* Lower
     * ,-----------------------------------------------------------------------------------.
     * |      |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * |   ~  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |     |    \  |  |   |
     * |------+------+------+------+------+------|------+------+------+------+------+------|
     * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO ~ |ISO | |      |      |Enter |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
     * `-----------------------------------------------------------------------------------'
     */
    [_LOWER] = LAYOUT(
        _______, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR,    KC_ASTR,    KC_LPRN, KC_RPRN, KC_DEL,
        KC_TILD, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS,    KC_PLUS,    KC_LCBR, KC_RCBR, KC_PIPE,
        _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  S(KC_NUHS), S(KC_NUBS), _______, _______, KC_QUOT,
        _______, _______, _______, _______, _______, _______, _______, _______,    KC_HOME,    KC_PGDN, KC_PGUP, KC_END
    ),

    /* Raise
     * ,-----------------------------------------------------------------------------------.
     * |      |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * |   `  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
     * |------+------+------+------+------+------|------+------+------+------+------+------|
     * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |ISO # |ISO / |      |      |Enter |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |      |      |      |      |      |      |      | Home | PgUp | PgDn | End  |
     * `-----------------------------------------------------------------------------------'
     */
    [_RAISE] = LAYOUT(
        _______, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL,
        KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS,
        _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, _______, _______, _______,
        _______, _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
    ),

    /* Adjust (Lower + Raise)
     * ,-----------------------------------------------------------------------------------.
     * |      | Reset|      |      |      |      |      |      |      |      |      |  Del |
     * |------+------+------+------+------+-------------+------+------+------+------+------|
     * |      |      |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|      |      |
     * |------+------+------+------+------+------|------+------+------+------+------+------|
     * |      |      |      |      |      |      |      |      |      |      |      |      |
     * |------+------+------+------+------+------+------+------+------+------+------+------|
     * |      |      |      |      |      |      |      |      |      |      |      |      |
     * `-----------------------------------------------------------------------------------'
     */
    [_ADJUST] =  LAYOUT(
        BL_TOGG, QK_BOOT,   _______, KC_MRWD, KC_MPLY, KC_MFFD, KC_PSCR, _______, KC_MUTE, KC_VOLD, KC_VOLU, KC_DEL,
        BL_STEP, RGB_MOD, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______,
        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
        _______, KC_PSCR, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
    )
};

// Setting ADJUST layer RGB back to default
void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
    if (IS_LAYER_ON(layer1) && IS_LAYER_ON(layer2)) {
#ifdef RGBLIGHT_ENABLE
        rgblight_mode(RGB_current_mode);
#endif
        layer_on(layer3);
    } else {
        layer_off(layer3);
    }
}

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    switch (keycode) {
        case QWERTY:
            if (record->event.pressed) {
#ifdef AUDIO_ENABLE
                PLAY_SONG(tone_qwerty);
#endif
                //        persistent_default_layer_set(1UL<<_QWERTY);
            }
            return false;
            break;
        case COLEMAK:
            if (record->event.pressed) {
#ifdef AUDIO_ENABLE
                PLAY_SONG(tone_colemak);
#endif
                //        persistent_default_layer_set(1UL<<_COLEMAK);
            }
            return false;
            break;
        case DVORAK:
            if (record->event.pressed) {
#ifdef AUDIO_ENABLE
                PLAY_SONG(tone_dvorak);
#endif
                //        persistent_default_layer_set(1UL<<_DVORAK);
            }
            return false;
            break;
        case LOWER:
            if (record->event.pressed) {
                // not sure how to have keyboard check mode and set it to a variable, so my work around
                // uses another variable that would be set to true after the first time a reactive key is pressed.
                if (TOG_STATUS) {  // TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
                } else {
                    TOG_STATUS = !TOG_STATUS;
#ifdef RGBLIGHT_ENABLE
                    rgblight_mode(16);
#endif
                }
                layer_on(_LOWER);
                update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
            } else {
#ifdef RGBLIGHT_ENABLE
                rgblight_mode(RGB_current_mode);  // revert RGB to initial mode prior to RGB mode change
#endif
                TOG_STATUS = false;
                layer_off(_LOWER);
                update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
            }
            return false;
            break;
        case RAISE:
            if (record->event.pressed) {
                // not sure how to have keyboard check mode and set it to a variable, so my work around
                // uses another variable that would be set to true after the first time a reactive key is pressed.
                if (TOG_STATUS) {  // TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
                } else {
                    TOG_STATUS = !TOG_STATUS;
#ifdef RGBLIGHT_ENABLE
                    rgblight_mode(15);
#endif
                }
                layer_on(_RAISE);
                update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
            } else {
#ifdef RGBLIGHT_ENABLE
                rgblight_mode(RGB_current_mode);  // revert RGB to initial mode prior to RGB mode change
#endif
                layer_off(_RAISE);
                TOG_STATUS = false;
                update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
            }
            return false;
            break;
        case ADJUST:
            // FIXME add RGB feedback
            if (record->event.pressed) {
                layer_on(_ADJUST);
            } else {
                layer_off(_ADJUST);
            }
            return false;
            break;
        case BL_TOGG:
#ifdef BACKLIGHT_ENABLE
            if (record->event.pressed) {
                print("Enabling backlight\n");
                backlight_init_ports();
            }
#endif
            return false;
            break;
        case BL_STEP:
            if (record->event.pressed) {
                print("Stepping backlight\n");
#ifdef BACKLIGHT_ENABLE
                print("Really stepping backlight\n");
                backlight_step();
#endif
            }
            return false;
            break;
            // led operations - RGB mode change now updates the RGB_current_mode to allow the right RGB mode to be set after reactive keys are released
#ifdef RGBLIGHT_ENABLE
        case RGB_MOD:
            if (record->event.pressed) {
                rgblight_mode(RGB_current_mode);
                rgblight_step();
                RGB_current_mode = rgblight_config.mode;
            }
            return false;
            break;
#endif
            //    case BL_INC:
            //    		meira_inc_backlight_level();
            //    	      return false;
            //    		break;
    }
    return true;
}
